Eccentric adjusting device



y 28, 1958 D. BACLINI ECCENTRIC ADJUSTING DEVICE Filed April 20, 1966 INVENTOR. 54100 fiAcA/M/ United States Patent 3,385,624 ECCENTRIC ADJUSTING DEVICE David Baclini, 8502 th Ave., Brooklyn, NY. 11228 Filed Apr. 20, 1966, Ser. No. 544,024 1 Claim. (Cl. 292-341.18)

ABSTRACT OF THE DISCLOSURE An eccentric adjusting device for a door frame comprising a block secured to a door frame with the block in alignment with a hole in the door frame. An outer cam member extends within the hole and is rotatably adjustably received in the socket. An inner cam member extends through the hole and is rotatably received within the outer cam member. The socket includes an outer recess of less diameter than the hole and an inner recess of less diameter than the outer recess. The inner cam member has a circular bore of less diameter than the inner recess.

This invention relates to an eccentric adjusting device on a door frame to center a heavy sliding bolt into a fixed socket.

In the construction of various types of buildings; such as bank vaults and the like, it is necessary to mate an extremely heavy steel door to its wall frame precisely in spite of the fact that the frame is made and shipped to the job for setting into a wall long before the door is fabricated. Since there are usually a minimum of four bolts per door this can cause extreme difliculty and expense during erection and adjustment of the door with respect to the frame.

It is therefore the primary object of the present invention to provide an easy to utilize device for securing alignment between a bolt or pin and the socket into which it must mate or slide.

A further object of the present invention resides in the provision of a device for facilitating the centering of a pin or bolt even though the off-distance center is unknown until the door is in place and which may be utilized in conjunction with all of the sockets in the door frame notwithstanding the fact that the off-distance center varies from bolt to bolt and socket to socket with respect to the same door and frame.

Another object of the present invention resides in the provision of a device for permitting a quick and simple adjustment which can be made on the spot to correct misalignment in any increment depending upon the design of the eccentric parts of the adjusting device.

Still further objects and features of this invention reside in the provision of an eccentric adjusting device which is simple in construction, easy to utilize, provided with means for facilitating the utilization thereof and which is inexpensive to manufacture, thereby permitting wide use and distribution in the construction fields.

These, together with the various ancillary objects and features of the invention, which may become apparent as the following description proceeds, are attained by this eccentric adjusting device, a preferred embodiment of which is illustrated in the accompanying drawings, by way of example only, wherein.

FIG. 1 is an exploded perspective view illustrating an eccentric adjusting device constructed in accordance with the concepts of the present invention;

FIG. 2 is a front elevational view of the eccentric adjusting device showing the manner in which the parts may be adjusted relative to each other to facilitate the alignment with a bolt;

FIG. 3 is an elevational view similar to FIG. 2., shown 3,385,624 Patented May 28, 1968 p CC with the parts welded together and with the bolt being shown in section; and

FIG. 4 is a horizontal sectional view looking along the plane of line 4-4 in FIG. 1, and illustrating the manner in which a bolt is received in the adjusting device and socket provided therefor.

With continuing reference to the accompanying drawings, wherein like reference numerals designate similar parts throughout the various views, reference numeral 10 is used to generally designate a portion of a steel door frame to which a block 12 is adapted to be welded, the block being provided with a socket 14 for receiving a bolt 16 fixed to a heavy steel door, generally indicated by reference numeral 18, of the type such as used on bank vault doors and the like. In the utilization of heavy steel doors, it is necessary that the bolt 16 fits snugly within the recesses provided therefor to insure proper maintenance of the door, secure locking thereof and continuous proper operation. However, the frame 10 is manufactured to its specification and forwarded to the construction site for installation in a concrete wall long before it is necessary to install the door. Because of variations in tolerances, difficulties in preventing stresses and strains from warping frames on the door, it is often extremely diflicult to properly center the bolt 16 of a door in its respective socket when the sockets are made for tightly receiving the bolt. In accordance with the concepts of the present invention, the socket 14 has an outer recess portion 20 and an inner recess portion 22 which are arranged in alignment with the hole 24 formed in the frame with the block 12 being welded as at 26 around the periphery of the opening 24 and elsewhere to the frame 10. The outer recess portion 20 is of slightly less diameter than the iameter of the hole 24 while the inner recess portion 22 is of considerable less diameter and slightly larger than the diameter of the pin 16 which is to be received in the socket 22. The difference in diameter between the outer recess 20 and the inner recess 22 defines a shoulder 28.

The present invention contemplates the utilization of an outer cam member or ring 30 which has a cylindrical outer surface 32 and a cylindrical inner surface 34 with the axis of the cylindrical surfaces 32 and 34 being parallel to each other by being offset from each other so that the walls of the cam ring 30 are in varying thicknesses. The ring 30 is partially bored at 36 forming a tool receiving recess for facilitating the rotation of the outer cam member 30. The outer cam member is disposed so that its innermost surface 38 rests against the shoulder 28 and with the front surface 40 thereof extending slightly outwardly of the inner recess 20 so that it may be conveniently welded as at 42 to the block 12. An inner cam member or ring 44 is provided having a cylindrical outer surface 46 as well as a cylindrical inner surface 48 with the axis of the cylindrical surface 46 not coinciding with but being parallel in space to the axis of the inner cylindrical surface 48 so that the thicknesses of the Walls of the cam member 44 is variable. Opening into the outer surface 50 of the cam member 44 is a hole 52 which is partially bored into the walls of the cam member 44 for receiving a tool for facilitating rotation and adjustment of the cam member 44 relative to the cam member 30. The cam 44 has its opening defined by the inner cylindrical walls 48 of slightly less diameter than that of the recess portion 22 and so as to snugly receive the bolt 16 with the tapered end portion 54 of the bolt 16 being received in the recess portion 22. The thickness of the ring 44 is slightly greater than that of the ring 30 for forming a strip as at 56 for facilitating welding at 58 of the ring 44 to the ring 30. The ring 44 engages the shoulder 28.

In use, after the frame has been installed in the concrete wall during the pouring operations for forming the building being constructed, the door is eventually brought to the site for installation. The heavy door with its locking bolt 16 is shipped as an integral unit for installation at the job site. Because of tolerances and inaccuracies during erection of the door frame, the pins and bolts in the door hardly ever line up with the center of the holes in the frame. The off-center distance is not known until the door is put in place and varies from bolt to bolt on the same door. Appropriate positioning of the outer cam member 30 and the inner cam member by revolving the inner cam member about the bolt 16 and the outer cam member within the recess portion 20 will always produce correct positioning where the eccentric pieces will mesh or mate, thus aligning the bolt 16 with the socket 14. The permanent securing of the cam in this position allows the pin to slide into and along the inner cylindrical surface 48 in a very snug fit.

A latitude of modification, substitution and change is intended in the foregoing disclosure, and in some instances some features of the invention will be employed without a corresponding use of other features. Accordingly, it is appropriate that the appended claim be construed broadly and in a manner consistent with the spirit and scope of the invention herein.

I claim:

1. An eccentric adjusting device on a door frame having an enlarged hole therethrough, a block having a socket therein, said block being secured to frame with said socket in alignment with said hole, an outer cam member extending within said hole and being rotatably adjustably received in said socket, and an inner cam member extending through said hole and being rotatably adjustably received within said outer cam member, said socket including an outer recess of less diameter than said hole, and an inner recess of less diameter than said outer recess defining a shoulder, said outer cam member and said inner cam member abutting said shoulder, said inner cam member having a circular bore therethrough, said bore being of less diameter than said inner recess.

References Cited UNITED STATES PATENTS 1,125,067 1/1915 Cook 2851 10 2,074,393 3/1937 Hixon 339274 2,860,015 11/1958 Matterson 3O8-62 MARVIN A. CHAMPION, Primary Examiner.

E. I. MCCARTHY, Assistant Examiner. 

